TITLE: GCN CIRCULAR NUMBER: 12006 SUBJECT: GRB 110422A: Herschel FIR observation preliminary report DATE: 11/05/05 03:12:33 GMT FROM: Maohai Huang at NAOC Maohai Huang (NAOC), Bing Zhang (UNLV), Dong Xu (WIS), Jinsong Deng (NAOC), Liping Xin (NAOC), Yulei Qiu (NAOC) report on behalf of Herschel OT1_mhuang01 Open Time program: Herschel Space Observatory has observed GRB 110422A according to the plan (Huang et al GCN 11985). Preliminary data reduction has shown statistically significant (S/N ~ 10) detection in 170um and 250um bands at a few mJy level. Scheduled follow-up observations and further analyses of foreground/background sources will be conducted to determine whether the emission is variable (dominated by the afterglow) or from the host galaxy of GRB 110422A and Galactic ISM.